There are different types. Some rely on donations and may not have the best food or accommodations available for you. But the main concept is the same: you spend your time mostly meditating either in a group setting or by yourself and sharing chores. In some instances you are not able to talk either. You’ll have to basically find out information specific to the retreat you want to attend. I would suggest to come by the place and ask for a tour, or look for people who went there and ask for their opinions.
What makes you feel that staying at a Buddhist temple long term will help you or anyone else to have a great life, though? Because if you do not feel that it will, then why bother.